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2 Sheets-Sheet 1.

(No Model.)

C. W. NASON. HOISTING AND CONVEYING APPARATUS.

Patented May 2.8, 1895.

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(No Medel.) 2 sheets-sheet 2.

C. W. lNASON. HOISTING AND CONVEYING APPARATUS.

Ne. 539,995. Peteeted Mey 28, 1895.-

Y l K mum/ieee,

afrenta OARLETON W. NASON, OF NEWv YORK, N.

HOlSTlNC AND CONVEYING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 539,995, dated May 28, 1895.

Application filed September 11, 1893- Serial No. 485,296. (No model.) l

To all whom it may concern,.-

Be it known that I, CARLETON W. NAsoN, a citizen of the United States, residing at New York, in the county of New York and State 4of New York, have invented a new and use'y tube, which tube passes through suitable guid-l ing mechanism for properly winding it upon,

and unwinding it from a rotary drum.

My invention also consists in the improved' construct-ion,` combinations, and details, as hereinafter set forth, and particularly pointed out in the claims. l

In the accompanyingdrawings, forming part of this specification, I have shown the preferred construction, and have also illustrated a modified form of the winding and guiding mechanism for the liexible tube.

Figure l is a vertical sectional view of a building or warehouse provided with my improved hoisting and conveying apparatus. Fig. 2 is a perspective view showing a retractle drum and the mechanism which I have de.

vised for properly winding. the flexible tube thereon and unwinding the saine therefrom.`

Fig. 3 is a plan view, partially broken away, which more clearlyillustrates the parts shown in Fig. 2. Fig 4 is a planview illustrating a modified form of the retractile drum and wi nding mechanism.

Referring to said figures, it is to be understood that the hoisting apparatus proper consists of a cylinder A operatively connected with any suitable form of grapple B, for taking the package or article, which is to be operated upon.

The cylinder A is provided at its upper end with a hook or eye d by which it can be suspended so as to swing freely from the carriage C, which is arranged to run upon an overhead track D extendinggalong the path in which it is desired to transfer the packages or articles. The carriage C and its track D may be of any desired pattern,the form shown being merely for the purpose of illustration. Connected to the lower end of the cylinder A is a flexible tube E, which for convenience, is passed through eyes or guides c at the upper end of the cylinder, and is wound around a drum F located at a convenient point, and the end of the tube,` which is wound upon the drum, is connected to the hollow shaft lO of the drum, as shown in Fig. 3. The shaft l0 of the drum is connected by means of a suitable packing or stuffing box g with a pipe G, which, in turn, communicates with a tank Il, in which a volume of air is maintained under suitable pressure, by any ordinary air compressing apparatus. The pipe E, Where it enters the cylinder A, is provided with a suitable valve orcock 7c, by which the air from the tank H can be shut off from, or allowed to enter the cylinder beneath the piston.

As the cylinder is moved along the track, the tube E will be unwound from the drum F, and if the apparatus is moved so as to unwind aconsiderable length of the tube,I may provide hangers h at suitable intervals along the track, having grooved pulleys Lltvizhich will support the tube, and prevent it from sagging and being in the Way. In order to re-wind the tube upon the drum, when the apparatus is again moved toward the drum,the

drum is provided with a retractile, by which the drum, when the apparatus is, moved inate to unwind the cord m, and turn the drum i F, so as to rewind the tube E upon it.

The parts before described are fully set forth in my patent before referred to.

In order to insure an even winding of the flexible tube E upon the drum F, I have devised the following apparatus:

The brackets 3, supporting the drums F and IOO M are extended beyond the bearings of the drums, and are connected at their outer ends by a tie-rod 4, which also serves as a guide for the carriage 9, hereinafter described.

In the brackets 3 and parallel with the rod 4: is mounted a screw 5, upon the end of which is secured a sprocket-Wheel 6, this sprocket,

Wheel being driven by the chain 7 from a 'sprocket-wheel 8 mounted on the end of the .surface of the drum F.

The tube E from the drum F passes between the guide-rollers 12 and 13 carried by the carriage 9, then through guide rollers 1 and 2 carried by the bracket 14, and from this point, thetube Eis led over the rollers t', and is connected to the hoisting cylinder, as shown in iny former patent. l, l g v The sprocketwheels 6 andv 8 and the leadscrew 5 are s"o proportioned that the carriage 9 is always maintained opposite the groove in the drum F in which the flexible tube E is being wound or unwound, 'and by ine'ans of this construction, the tube is wound smoothly uponwthe drum, and the possibility of uneven winding, or of kinking the tube, is avided.

It isto benoted, that whileI have shown and described a lead-screw, chain, and sprocketu heels for gearing the reciprocating carriage to the druin, that I may use any convenient form of gearing for this purpose.

Instead of providing a reciprocating carriage for guiding the flexible tube, while it is beingy wound upon the drum, it is evident that the tube may beI led through a stationary guide, and the drum itselfnlay be moved longitudinally` past the guiding point, in order to accomplish the sameV purpose, and in Fig. 4,'I have illustrated this modified form of de- Vice.

In Fig. Il, the drums F and M are secured fast upon the pipe 15, which is supported by brackets 16 and 17. A screw is cut Aupon the portion of the pipe 115 at ythe left of the drum F. This screw-thread engages a nut carried by the bracket 17, and is adapted to move the drum back and forth, as it is rotated. A pipe 19, somewhat smaller than the pipe 15, suitably packed or fitted to telescopically engage the screw 115 is supported by the bracket 18, and is suitably connected to the pipe G, which leads to the source of fluid supply. The pipe 15 is connected through the drum F to the tube E, in the same manner as the pipe 10 of the preferred for'rn of my invention. The flexible tube E is led from the surface of the drum between the guide-rollers 1 and 2, and is connected to the hoisting cylinder.

Various changes may be made in the details of the device, and I do not wish to be limited to the exact construction, which I have illustrated and described.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a hoisting and conveying apparatus, the combination of an overhead track, a carriage adapted to ltravel on said track, ahoisting cylinder carried by said carriage, a source of fluid supply, a flexible tube, a series ot' vertical guide-rollers t', the stationary horizontal guide-rollers 1 and 2 journaled in line with the top of said vertical guide-rollers, said rollers being arranged to maintain the flexible tube in line with the overhead track, a drum and a retractile for automaticallyy rewinding said dexible tube, and a reciprocating mechanism for receiving the tube as it passes from between the guide-'rollers 1 and 2, and for 'guiding it as it is wound upon and unwound from said drum,- substantially as described.

2. In a hoisting and conveying apparatus, the combination of an overhead track, a traveling carriage, a hoisting cylinder carried by said carriage, a source of duid supply,aiiexi ble tube, a lseries of vertical' guide rollers, a pair of horizontal guide rollers located near the inner end of the track, and journaled in line with the' top of said vertical guide rollers, a drum and a retractile for automatically rewinding said iiexible tube, a reciprocating guiding carriage for receiving the tube as it passes from between the horizontal guiderollers, a lead-screw for actuating said carriage, and a chain and sprocket wheels for gearing together said drum and lead-screw, 'substantially as described.

In testiinony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

OARLE'IGN IV. NASON.

Witnesses:

PHIL. W. SOUTHGATE, WM. J. MYERS.

IOS) 

